A circular wheel travels along a flat surface at a constant rate of 2.5 feet per second. How many complete revolutions will the

admin2021-10-21  44

问题 A circular wheel travels along a flat surface at a constant rate of 2.5 feet per second. How many complete revolutions will the wheel make in 50 seconds if its diameter is 3 feet?

选项 A、6
B、10
C、13
D、14
E、19

答案C

解析 50秒内轮子走过的距离:轮子的周长(πd)×圈数。50×2.5=π×3×revolutions=13<revolution<14。
转载请注明原文地址:https://jikaoti.com/ti/RGzYFFFM
本试题收录于: GMAT QUANTITATIVE题库GMAT分类
0

最新回复(0)